A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.
DC motor speed control using PWM
DC motor speed control based on PIC16F867.
The circuit is using PWM with frequency about 10kHz, which does not make a noise in the motor. This project can drive motor with 1A current without heat. The motor speed is controlled by potentiometer which is connected to ADC input of PIC16F867.